Registering mechanism



Feb. 25, 1930.

W. T. HATMAKER ET AL REGISTERING MECHANI SM Filed June 21, 1924 2Sheets-Sheet l v INVEN Toms. WILL/AM THATMAKEE! EMA. E E/CKMEYER.

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Feb. 25, 1930. w, HA'fMAKER ET AL 1;.748344 REGISTERING MECHANI SM 2Sheets-Sheet Filed June 21, 1924 ATTORNEY.

Patented Feb. 25; 1930 AUNNITED STATES PATENT OFFICE WILLIAM T, HATMAKERAND EARL E. EICKMEYER, OF DAYTON, OHIO, ASSIGNORS TO THE NATIONALRECORDING PUMP COMPANY, OF DAYTON, OHIO, A CORPORA- TION OF OHIOREGISTERING MECHANISM Application filed June 21,

This invention relates to registering mechanism and more particularly tomeans for controlling the resetting of the registering devices.

One object of the invention is to provide a device which will positivelyprevent the overthrow of the registering device when it has beenrestored to its initial position.

A further object of the invention is to provide means for positivelyinterrupting the movement of the resetting mechanism at the end of apredetermined movement thereof.

A further objectof the invention is to provide such devices which willbe simple in construction, positive in their operation and of such acharacter that they will not be easily broken or otherwise renderedinoperative.

Other objects of the invention will appear as the mechanism is describedin detail.

In the accompanying drawings Fig. 1 is a plan view of a registeringmechanism embodying my invention; Fig, 2 is a horizontal sectional viewtaken through a portion of such registering mechanism; Fig. 3 is avertical section taken on the line 33 of Fig. 1; Fig. 4 is a detail viewof the register actuating device taken on the line 44 of Fig. 1; Fig. 5is a detail view of the device for preventing the overthrow of theregistering de vice taken on the line .5-5 of Fig. 1; Fig. 6 is a detailview of the gear connection between the resetting shaft and the registeractuating shafts; Fig. 7 is a detail view of the device for interruptingthe movement of the resetting mechanism; and Fig. 8 is a detail view ofthe indicating register. 7

In these drawings we have illustrated one embodiment of our inventionand have shown the same as applied to a registering device for a liquiddispensing pump. such as the well known gasoline pumps. This registeringmechanism comprises two registering devices, one a visual indicatorwhich registers both in units and fractions thereof, in thepresentinstance in gallons and quarts, and asecond registering devicecomprising type wheels on which a printed record of the registration maybe'taken. At the end of each delivery of liquid the printing mechanismis operated to take a record of the quantity 1924:. Serial No. 721,483.

vcentrically, the outer series of indications representing" gallons andthe inner-series of registrations representing fractions of gallons orquarts. Cooperating with this dial are two movable pointers 2 and 3, thepointer 2 cooperating with the outer or gallon series of indications andthe pointer 3 cooperating with the inner or quart series of indications.The pointer 2 is rigidly secured to a shaft 4 which is journaled inbearings 5, 6 and 7, and y which has rigidly secured thereto a ratchetwheel 8 by means of which operative movement i imparted to the shaft andthe pointer. The se 0nd, or shorter pointer 3, is rigidly secured to asleeve 9 which is rotatably mounted about the shaft 4 within a bearing 9and has secured to its inner end, just beyond the bearing, a pinion 10with which meshes a gear 11 rigidly secured to a shaft 12 which isjournaled in bearings 13 and 14. Secured to the shaft 12 is a pinion 15which meshes with a gear116 rigidly secured to a sleeve 17 which isrotatably mounted on the shaft 4 and is also mounted in the bearing 6.Rigidly connected with the sleeve 17 and the gear 16 is a second ratchetwheel 18 which is arranged adjacent to, but spaced a short distancefrom, the ratchet wheel 8. Cooperating with the respective ratchetwheels are pawls 19 and 20 which are preferably connected one to theother so that they will move in unison and which, in the presentinstance, are formed integral one with the other but have their nosesorcontact portions separate one from the other. These pawls are hereshown as pivotally mounted upon a projection or bracket 21 extendingupwardly from an actuatingarm 22 which is pivotally mounted for movementabout the axis of the shaft 4 and is operatively connected with asuitable part of the dispensing apparatus which will cause the desiredmovement to be imparted to the pawls. In the present instance, aconnecting rod 23 is pivotally connected at its upper end with the arm22 and is connected at its lower end with the dispensing. apparatus insuch a manner that it will impart to the pawl carrying arm 22 a completeoscillation upon the de-- one of the shallower recesses of that ratchetwheel the pawl for the gallons ratchet wheel will be inoperative andconsequently the operation of the pawl structure will impart movementonly to the quart ratchet wheel and the quart pointer 3. After thecompletion of three movements of the pawl structure the pawl for thequarts ratchet wheel will drop into one of the deeper recesses 24,thereby permitting the pawl for the gallons ratchet wheel to move intooperative engagement with that ratchet wheel so that upon the next andfourth stroke of the pawl structure both ratchet wheels will beactuated, thereby ad- ,vancing the gallons pointer 2 one space andreturning the quart pointer 3 to its zero position, as-shown in Fig. 8.The pawls are held normally in contact with the respective ratchetwheels by a spring 25, and detent pawls 26 hold the ratchet wheelsagainst reverse movement.

Rigidly secured to the shaft 4 beyond the bearing 6 is a gear 27 whichmeshes with a gear 28 secured to and, in the present instance, formingapart of the gallons counter 29 of a second registering device, thissecond registering device being preferably composed of type wheels fromwhich a record may be taken and being mounted upon a shaft 30.

Rigidly secured to that end of the sleeve 17 which projects beyond thebearing 6 is a gear 31 which meshes with a gear 32 rigidly secured to asleeve 33 rotatably mounted on the shaft 30 and having rigidly securedthereto a quarts type wheel 34, of the second registering device, thegallons type wheel 29 being rotatably mounted upon this sleeve, as shownin Fig. 3. It will be apparent, therefore, that the operation of theshaft 4 and sleeve 1? W111 simultaneously actuate both registeringdevices. The printing mechanism which cooperates with the type .wheels29 and 34 forms no part of the present invention and need not be hereshown or described.

In order to restore the registering devices The reto their initial orzero positions after the completion of each registering operation wehave provided the hubs of the gears 27 and 31 with recesses .35, thusconstituting these hubs in effect one toothed ratchet wheels. The twohubs extend one toward the other but are spaced a short distance apartand rotatably mounted on the shaft 4 between these hubs is a gear 36which'barries pawls 67 which are adapted to engage the recesses orsingle teeth of the respective hubs when the ear 36 is rotated in aforward direction.

he arrangement is such that when the gears 27 and 31 are rotated in adirection to advance the registering devices the pawls will ride overthe hubs without interfering with their operationbut when the gear 36 isrotated in a forward direction the pawls will pick up the respectivehubs and cause the two gears and consequently the'tivo registeringdevices to be moved to their initial or zero positions. The gear 36 iscaused to make a single revolution so that it will pick up therespective hubs in any position which they may occupy and cause them tocomplete a single rotation. Meshingwith the resetting gear'36 is a gear37 which is rigidly secured to a shaft 38 mounted in bearings 39 and 40and extending beyond the bearing 40 where it is connected with asuitable operating device or handle 41. In order that the handle 41 maymake more than one revolution for each rotation of the shaft 38 thehandle has geared connection with theshaft 38, the latter being pro-.vided with a gear 42 which is connected through an idle gear 43-with agear 44 mounted on a short shaft 45 to which the handle is secured.

We have provided means for positively interrupting the movement of theshaft 38 when the latter has completed a single rotation and, in thepresent device, we have secured to the shaft 38 an arm 46 which ispreferably provided in one edge, near the end thereof, with a notch 47.A second arm 48 is rigidly secured to the shaft 38 and extends in adirection substantially opposite that in which the arm 46 extends. Thetwo arms may, if desired, be formed integral one with the other. Thesecond arm 48 is provided near its outer end with a projectionor pin 49.Pivotally mounted adjacent to and on an axis parallel with the shaft '38is a stop finger 50 which is movable into and out of the path of the arm46 and, in the present construction, has its end shaped to fit withinthe recess 47. Rigidly connected with the stop finger 50 is a tripfinger 51 which extends upwardly to a point near the arm 48 and has itsupper end inclined outwardly, as shown at' 52, and so arranged that whenthe nose of the finger 50 is seated in the recess 47 the inclined end ofthe finger 51 will lie adjacent to and in the path of the pin 49. Whenthe stop finger 50 is seated in the recess 47 of the I arm 46 the shaft38 is held against forward movement and in order to release the shaft aslight rearward movement is imparted thereto, a detent 53, whichcooperates with a ratchet wheel 54 to hold the shaft against reversemovement, being so arranged with relation to the ratchet teeth that theshaft may move rea-rwardly a distance slightly less than the length ofone of the ratchet teeth. This rearward movement of the shaft lifts thearm 46 out of engagement with the stop finger and a spring which isconnected with the trip finger 51 moves the finger 50 out of line withthe arm 46 and moves the trip finger 51 inwardly a correspondingdistance. The reverse movement of the shaft will also cause the pin ofthe arm 48 to engage the inclined end of the trip finger 51 and thuspositively move the stop finger to its inoperative position, in whichposition it will be held by the spring 55. The shaft having thus beenreleased the operating handle and shaft may be rotated in a forwarddirection and as the shaft nears the completion of its rotation the pin49 will engage the inner edge of the trip finger 51 and the two fingerswill be moved in a reverse direction and the stop finger againpositioned in the path of the arm 46. This movement will carry the noseof the stop-finger slightly beyond 'a position in true alinement withthe notch 47 but its position will be such that it will enter the notchas the arm 46 approaches the same. After the nose of the stop finger hasentered the notch the pin 49 will move beyond the end of the tripfinger, thus releasing the same and permitting it to be moved by thespring 55 into line with the pin 49 and permitting the stop finger toproperly aline itself with the notch 47, as shown in Fig. 7. In thismanner the operation of the resetting mechanism, and of the printingmechanism which is also operated by the shaft 38, is positivelyinterrupted after one complete operation thereof but the mechanism may,if the operator so desires, be immediately released and again operated.

Vhen the resetting mechanism is operated at a relatively highspeed andits operation is suddenly stopped at the end of a complete rotation ofthe shaft 38 there is a tendency on the part of the ratchet wheels 8 and18, and their connected parts. to continue their movement, or overthrow,due to inertia, thus advancing the registering devices beyond theirinitial positions. To prevent this overthrow we have provided eachratchet wheel 8 and 18 with a part constituting a stop, these partsbeing here shown as small plates 56 rigidly secured to the adjacentfaces of the respective ratchet wheels and having their outer endspointed and so arranged as to provide a substantially radial contactportion 57. Cooperating with these stops is a detent, here shown ascomprising an arm 58 pivotally mounted at its lower end on the frame ofthe'machine and having at its upper end a nose 59 adapted to extendbetween the two ratchet wheels and into the paths of both stops. Themovement of this detent or stop member is so controlled by the resetting mechanism that it will be moved into the paths of the stops afterinitial movement has been imparted to the ratchet wheels and registeringdevices and will be retained in this position until the registeringdevices have been restored to their initial positions and the stopplates 56 haveengaged the nose of the detent which will positively stoptheir movement. After the movement of the ratchet wheels and registeringdevices has been checked the nose of the detent is withdrawn so as torelease the ratchet wheels and registering devices for operation. In thepresent form of the mechanism the detent or stop member 58 is actuatedby a cam 60 which is mounted upon the shaft 38 and provided in one facethereof with a cam groove 61 into which extends a projection or pin 62projecting laterally from the detent. This cam is so arranged withrelation to the resetting mechanism and to the stop member that the stopmember will be held normally in its inoperative position, that is,during the registering operation the nose of the detent will be out ofline with the stop plates 56, thereby permiting the free rotation of theratchet wheels. The cam groove is provided with a dwell which willpermit of a slight operation of the resetting shaft 38 before the stopmember will be moved into its operative position, thus allowing time forthe ratchet wheels to move far enough to carry the stop plates past thenose of the detent. The detent member is then moved into its operativeposition and is held in this position until the ratchet wheels havecompleted their movement and the stop plates have engaged the nose ofthe detent, thereby positively interrupting the movement of the ratchetwheels and of the registering devices. In order that the detent may bewithdrawn after the registering devices have been restored to theirinitial position the connection betweenfthe shaft 38 and the ratchetwheels is such that the ratchet wheels and registering devices will berestored to their initial positions shortly before the shaft 38completes its rotation and the further movement of the shaft 38 and cam60 will withdraw the detent. In the present device the resetting shaft38 is connected with the ratchet wheels through the medium of the gears36 and 37 and these gears are so constructed that the gear 37 may have alimited movement with relation to the gear 36 at the beginning and atthe end of the movement of the shaft 38. To accomplish this the gearsare in the form of mutilated gears, the gear 37 having a smoothconcentric portion 63 at one side thereof which is adapted to engage andto cooperate with a concave portion or wide tooth 6 L on the gear 36.\Vhen the two gears are in their normal positions the wide or concavefaced tooth 64 will occupy a position between the ends of the smoothportion 63 of the gear 37. As a result the gear 37 will rotate withrelation to the gear 36 until the first tooth thereof engages the widetooth 64 of the gear 36. ThlS engagement will bring the gear teeth intomesh and the two gears will rotate in unison until the gear 36 has completed one rotation, at which time the last tooth on the gear 37 willmove out of mesh with the gear 36 and the concavevfaced wide tooth 64will again enga' e the smooth portion of the gear 37 and t is lattergear will continue its movement until the rotation of the shaft 38 hasbeen positively stopped and it is during this latter portion of themovement of the gear 37 and the shaft 38 that the detent or stop member58 is withdrawn. During the first movement of the gear 37 with relationto the gear 36 the printing mechanism is operated so that the recordwill be taken before the resetting operation begins. While we haveshownand' described one embodiment of our invention we wish it to beunderstood that we do not desire to be limited to the details thereof asvarious modifications may appear to aperson skilled in the art.

Having now fully described our invention,

what we claim as new and desire to secure by Letters Patent, is:

1. In. a mechanism of the character described having a registeringdevice and resetting mechanism for said registering device, positivelyactuated means to stop the movement of said registering device when ithas been restored to its initial position and to then release the samefor operation.

2. In a mechanism of the character described having a registering deviceand resetting mechanism therefor, a device to 'positively stop themovement of said registering device when it has been moved to itsinitial position, and means controlled by said resetting mechanism tomove said stop' device into an inoperative position after the movev mentof said registering device has been ing the same after said registeringdevice has been restored to its initial position.

4. In a mechanism of the character described having a registering deviceandresetting mechanism therefor, a part connected with said registeringdevice for rotation therewith, a device mounted for movement into andout of the path of said art, and means actuated by the operation 0 saidresetting mechanism to move said device into a position to be engaged bysaid part when said registering device is moved to its initial positionand to then move said device out of the path of said part.

5. In a mechanism of the character described having a registering deviceand resetting mechanism therefor, a part connected with said re isteringdevice for rotation therewith, a evice mounted for movement into and outof the path of said part, and a cam operatively connected with saidresetting mechanism and actin onsaid device to move it into the path 0%said part after said registering device has been moved from its initialposition and to move said device out of the path of said part after saidresetting device has been restored to its initial position.

6. In a mechanism of the character described having a registering deviceand resetting mechanism therefor, a member operatively connected withsaid registering device and having a part forming a stop, a detentmovable into and out of the path of said stop, and an operativeconnection between said detent and said re istering mechanism to causesaid detent to moved out of the path of said stop when said registeringdevice has been moved to its initial position. i 7. In a mechanism ofthe character described having a registering device and resettingmechanism for said registering device comprising an operating device soconnected with said registering device as to permit said operatingdevice to continue its movement after the movement of said registeringdevice has been interrupted, a part connected with said registeringdevice, a device movable into and out of the path of said part, andmeans actuated by said operating device to move the last mentioneddevice into the path of said part and retain the same in that positionuntil it has been engaged by said part and to then withdraw the same.

8. In a mechanism of the character described having a re istering deviceand resetting-mechanism t erefor, a ratchet wheel connected with saidregistering device and having a part forming a stop, a detent movablmounted adjacent to said ratchet wheel, and means controlled by saidresetting mechanism to positively move said detent into and out of thepath of said part of said ratchet wheel.

9. In a mechanism of the character described having a registering deviceand resetting mechanism therefor comprising a shaft, and an actuatingdevice for said shaft, a ratchet wheel connected with said registeriii)' ing device, a stop-device movable into and out of a position tointerrupt the movement of said ratchet Wheel and said registeringdevice, and a cam connected with the shaft of said resetting mechanismand acting on said stop device to impart both movements thereto.

10. In a mechanism of the character described having a registeringdevice, a retting mechanism for said registering deiice comprising ashaft, and actuating mechanism for said registering device comprising aratchet wheel, an actuating device for said shaft, a stop movable intoand out of a position to interrupt the movement of said ratchet wheeland said registering device, and a cam connected with the shaft of saidresetting mechanism and acting on said stop device, said shaft beingcapable of continued movement after said ratchet wheel has been restoredto its initial position to cause said stop device to be moved to aninoperative position.

11. In a mechanism of the character described having a registeringdevice comprising a shaft, a ratchet wheel secured to said shaft, saidratchet wheel having a part forming a stop, a gear connected with saidratchet wheel to restore the same to its initial position, a mutilatedgear adapted to mesh with the first mentioned gear and to have movementrelative to the first mentioned gear after the movement of the firstmentioned gear has been completed, and means for actuating saidmutilated gear, a stop member movable into and out of the path of saidpart of said ratchet wheel, and means operatively connected with saidmutilated gear for actuating said stop member.

12. In a mechanism of the character described having a registeringdevice comprising a shaft, a ratchet wheel secured to said shaft andhaving a part forming a stop, a gear rotatably mounted on said shaft andhaving means for actuating the same to re-' store said ratchet wheel andsaid registering device to their initial positions, a second shaft,means for rotating said second shaft,

. a mutilated gear carried by said second shaft shaft and an operatinghandle connected with said shaft, an arm connected with said shaft, a.stop movable into and out of the path of said arm, a finger connectedwith said stop, and a part connected with said arm and adapted to engagesaid finger to move said stop into the path of said arm as said shaftnears the completion of its rotation.

14. In a mechanism of the character described having a registeringdevice and resetting mechanism therefor comprising a shaft and anoperating handle connected with said shaft, arms rigidly connected withsaid shaft and arranged on opposite sides thereof, one of said armshaving a projection, a stop movable into and out of the path of theother of said arms, a spring tending to hold the stop out of the path ofsaid arm, and a finger connected with said stop and arranged to beengaged by said projection to move said stop into the path of said arm.

15. In a mechanism of the character described having a registeringdevice and resetting mechanism therefor comprising a shaft and anoperating handle connected with said shaft, arms rigidly secured to saidshaft and arranged on opposite sides thereof, one of said arms having alaterally extending projection, the other of said arms having a notch inthe edge thereof, a stop finger mounted for movement into and out of thepath of the last mentioned arm and having a nose adapted to enter saidrecess, a spring acting on said stop to move it out of the path of saidarm, a finger connected with said stop finger and arranged to be engagedby the pro jection on the first mentioned arm to move said stop fingerinto the path of the last mentioned arm, said last mentioned fingerbeing so arranged that said projection will move beyond the end thereofjust before the last mentioned arm engages said stop finger.

16. In a mechanism of the character described having a registeringdevice and resetting mechanism therefor comprising a shaft and anoperating handle connected with said shaft, arms rigidly secured to saidshaft and arranged on opposite sides thereof, one of said arms having alaterally extending projection, the other of said arms having a notch inthe edge thereof, a stop finger mounted for movement into and out of thepath of the last mentioned arm and having a nose adapted to entersaidrecess, a spring acting on said stop to move it out of the path of saidarm, a finger connected with said stop finger and arranged to'be engagedby the projection on the first mentioned arm to move said stop fingerinto the path of the last mentioned arm,

tioned arm when said'shaft is moved in a reverse direction and to movesaid stop-finger out of the path of the last mentioned arm.

17. In a mechanism of the character described having a registeringdevice and resetting mechanism therefor comprising a,

I shaft and an operating handle connected with vice when the latter hasbeen returned to its initial position, and an operative connectionbetween the last mentioned shaft and the last mentioned device.

18. In a mechanism of the character described having a registeringdevice comprisin a shaft and a ratchet wheel secured to said shaft, saidratchet wheel having a part I forming a stop, a cooperating stop membermovable into and out of the path of said stop, a gear rotatably mountedon said shaft, and having means for actuating the same to restore saidregistering device to its initial position, a second shaft, a mutilatedgear mounted on said second shaft and arran ed to mesh with and to havemovement relatively to the first mentioned gear, an operative connectionbetween said shaft and the last mentioned stop member, a part carried bysaid shaft for rotation therewith, a stop finger movable into and out ofthe path of said part, and means actuated by the rotation of said shaftto move said sto finger into the path of said part prior to thecompletion of the rotation of said last mentioned shaft.

19. In a mechanism of the character described havin a registering devicecomprising a shaft an a ratchet wheel secured to said shaft, saidratchet wheel having a part forming a stop, a cooperating stop membermovab e into and out of the path of said stop, a gear rotatably mountedon 'said shaft and aving means for actuating the same to restore saidregistering device to its initial position, a second shaft, a mutilatedgear mounted on said second shaft and arranged to mesh with and to havemovement relatively to the first mentioned ear, an operative connectionbetween sai shaft and the last mentioned sto member, arms secured to thelast mentione shaft and arranged on opposite sides thereof, a stopfinger movable into and out of the path of one of said arms, a fingeroperatively connected with said stop finger, a projection carried by theother of said arms and arranged to engage one portion of the lastmentioned fin er to move said stop finger I into the path of said firstmentioned arm and to engage a art of the last mentioned finger, whensaid s aft is moved in a reverse direction, to move said stop finger outof the path of said first mentioned arm.

20. In a mechanism of the character described, a registering device, aresetting mechanism therefor comprising a shaft, an oper ating handleconnected with said shaft, a

part connected with said shaft for rotation therewith, a stop movableinto and out of the path of said part, and means actuated by therotation of said shaft to first move said stop out of the path of saidpart and to then move. 7 said stop into the path of said part prior tothe completion of the rotation of said shaft.

In testimony whereof, we aflix our signatures hereto.

WILLIAM T HATMAKER. 7 EARL E. EICKMEYER. 1

